You might be familiar with Cécred’s Restoring Hair & Edge Drops, the viral “heaven in a bottle” hair growth serum from Beyoncé’s hair care brand. The drops have many fans, including our own shopping editor Marquaysa Battle, who said they “not only halted hair loss in its tracks but it restored my hairline’s fullness,” which led us to give the serum a HuffPost Shopping Award this year. But if you’re dealing with your own hair loss, you know it’s not just happening on your scalp: Thinning brows and lashes are also part of aging, which makes Cécred’s latest launch so exciting.That’s right — Cécred launched a Restoring Lash & Brow Builder on Aug. 11 as a sister product to the Restoring Hair & Edge Drops that is... well, focused on lashes and brows. Meant to be used twice daily, the brand claims that you can see 1.4x visibly denser brows and lashes in just 45 days.The key ingredients include proprietary biopeptide-5 (a blend of five peptides, or short chains of amino acids), bioactive keratin ferment and biotin, all of which also appear in the Restoring Hair & Edge Drops. We previously spoke to a dermatologist about the Restoring Hair & Edge Drops, who told us that the peptides present can anchor the hair follicles for longer growth, inhibit shedding, increase blood flow to the hair to stimulate growth and keep hair in the growth phase for longer. Now they’re doing the same thing in a brow and lash serum, just with different hairs.The serum also contains something the Restoring Hair & Edge Drops don’t: allantoin, a naturally occurring chemical compound with moisturizing, soothing properties. In this case, it’s there to support the skin barrier around your lashes and brows to help them grow.CécredThe serum has been tested to show visible results after 45 days.There’s also something notably missing from the ingredients list: prostaglandins or prostaglandin analogues, also known as PGAs. Prostaglandins are hormone-like lipids that can stimulate lash growth, but they come with all sorts of potential side effects, like irritation, redness and hyperpigmentation. Prostaglandins and PGAs can be found in popular lash serums like prescription-only Latisse or GrandeLASH-MD, respectively. Without prostaglandins or PGAs, the Cécred serum might have slightly different growth potential, but without the risk of those side effects.The formula is meant to be non-greasy and fast-absorbing, and the bottle comes with a teensy-tiny brush that you can use to apply it on your brows and lash line. It’s designed to easily layer with makeup and other skin care products — just make sure you let it fully dry first — as well as brow and lash treatments. Just note that if you’ve recently gotten lash extensions, lash lifts, microbladed brows, tinted brows or brow laminations, the brand recommends waiting at least 72 hours before you apply this stuff.Plus, the serum is fragrance-free. It’s dermatologist-, ocular- and ophthalmologist-tested to be safe on your skin and eyes as well.With the product just having launched, we’re still waiting for reviews to pour in. And yes, $48 is on the pricier side, but given that this has the same superstar ingredients as the hair serum we know is a winner, we’re pretty optimistic about the Restoring Lash & Brow Builder. For now, it’s only available on Cécred’s direct website. Check it out for yourself at the link below.Check out these mascaras for short and thin lashes, from a list curated by the HuffPost Shopping team:AmazonEssence Lash Princess false lash effect mascaraSeen all over, well, everywhere, is Essence's Lash Princess mascara, which claims to give the appearance of wearing false lashes. A makeup artist who spoke to HuffPost selected it as one of her top picks because of the striking difference it makes in even the most subtle lashes. In addition to its very appealing low price, the mascara's conically shaped brush picks up all of your lashes and gives dramatic volume and intense color without clumping.SephoraClinique High Impact mascaraAnother makeup artist pick is this buildable mascara from Clinique, a staple beauty brand beloved by many (including my mom and I). It comes in black and black/brown, and is perfect for adding volume and length to short lashes.NarsNars Climax extreme mascaraAnother makeup artist told HuffPost that this super pigmented mascara offers noticeable length and volume with just one coat. The ribbed bristle brush coats every lash from the root to the tip, giving your barely-there lashes the maximum volume you desire. With this produt's long wear, clump resistance and flake resistance, your lashes can be the star of the show and not the smudges around your eyes.